Add early failure detection for tempest base job

Zuul can do better resource allocation if it learns early that a job
will fail even when tests haven't completed yet. This is done by adding
a regular expression that will match on a single failing test within a
tempest run. The regex is copied from what the zuul project has already
been using successfully for some time.

Change-Id: I8c9488a55d04e32384d1523a9658a8711b05c340
1 file changed